啤酒酿造中的双乙酰及其酶法控制研究进展  

Research Progress of Diacetyl and its Enzymatic Control in Brewing

作　　者：励建荣 裘纪莹 

机构地区：[1]浙江工商大学食品生物与环境工程学院,浙江省食品安全重点实验室,浙江杭州310035

出　　处：《现代食品科技》2007年第9期65-68,共4页Modern Food Science and Technology

摘　　要：啤酒成熟的一个重要方面是啤酒风味物质的成熟,双乙酰是主要指标之一。双乙酰含量是成熟期的时间限制因子,双乙酰在啤酒罐装后的回升问题也不容忽视。啤酒酿造中控制双乙酰的一个主要方法是以α-乙酰乳酸脱羧酶来改变代谢支路,将双乙酰的前体物质α-乙酰乳酸直接快速地转化为乙偶姻,从而降低α-乙酰乳酸转变为双乙酰的量,缩短啤酒成熟时间,减少成品啤酒中双乙酰的回升,提高啤酒风味稳定性。本文主要介绍双乙酰的代谢途径、α-乙酰乳酸脱羧酶在啤酒酿造中降低双乙酰的作用机理以及国内外有关α-乙酰乳酸脱羧酶的研究进展情况。One of the key indices indicating the maturation of beers was the change of some flavors in beer,such as diacetyl.The conversion of diacetyl was slow and its content would rise again after the beer was canned or bottled,α-Acetolactate decarboxylase was usually used to control the content of diacetyl,which could catalyze the conversion ofα-acetolactate （the precursor of diacetyl） to acetoin in order to prevent the synthesis of diacetyl,lower the maturation time of beer and improve the stability of flavors in beer.In this paper,the formation and reabsorption of diacetyl,the mechanism ofα-acetolactate decarboxylase-mediated reduction of diacetyl and the progress ofα-acetolactate decarboxylase research were reviewed.

关 键 词：双乙酰 α-乙酰乳酸脱酶(ALDC) 啤酒 

分 类 号：TS262.5[轻工技术与工程—发酵工程]